<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            margin:0;
            padding:0;
        }
        .title{
            height:44px;
            position:relative;
        }
        .content{
            width:998px;
            height:1677px;
            margin:0px auto;
        }
        .left_bg{
            position:absolute;
            left:0px;
            top:61px;
        }
        .right_bg{
            position:absolute;
            right:0px;
            top:61px;
        }
    </style>
</head>
<body>
 <div class="box">
    <div class="title">
        <img src="file/固定定位练习图片/r1_c1.png">
    </div>
    <div class="content">
        <img src="file/固定定位练习图片/box.png">
    </div>
    <div class="left_bg">
        <img src="file/固定定位练习图片/r2_c1.png">
    </div>
    <div class="right_bg">
        <img src="file/固定定位练习图片/r2_c2.png">
    </div>
 </div>
</body>
</html>